Use XDG Base Directory Specification

SSH is an exception because there seems to be no good way of supporting
XDG. Patience, I guess...

dotfiles/.bash_profile

@@ -1,2 +0,0 @@
-[ -f ~/.bashrc ] && . ~/.bashrc
-

dotfiles/.config/bash/profile

@@ -5,14 +5,22 @@
 # Customize environment
 ##############################################################################
 
+export XDG_CACHE_HOME="$HOME/.cache"
+export XDG_CONFIG_HOME="$HOME/.config"
+export XDG_DATA_HOME="$HOME/.local/share"
+
 export EDITOR="vim"
+export INPUTRC="$XDG_CONFIG_HOME/readline/inputrc"
 export LANG="en_US.UTF-8"
 export LANGUAGE="en_US"
-export LC_CTYPE="en_US.UTF-8"
 export LC_ALL="en_US.UTF-8"
+export LC_CTYPE="en_US.UTF-8"
 export LESS="-i -j.49 -M -R -z-2"
-export LESSHISTFILE=/dev/null
+export LESSHISTFILE="$XDG_CACHE_HOME/less/history"
+export LESSHISTSIZE=1000
 export PAGER=less
+export VIMINIT='let $MYVIMRC="$XDG_CONFIG_HOME/vim/vimrc" | source $MYVIMRC'
+
 
 # Find out where Homebrew performs installations. If Homebrew is not
 # installed (e.g. running on Linux), assume /usr/local for our
@@ -74,7 +82,7 @@ HISTCONTROL=erasedups
 HISTFILESIZE=
 HISTSIZE=
 HISTTIMEFORMAT="[%F %T] "
-HISTFILE=~/.bash_eternal_history
+HISTFILE="$XDG_CACHE_HOME/bash/history"
 
 # shellcheck disable=SC2034 # these variable are meant for use in shell only
 {
@@ -197,6 +205,8 @@ alias path='echo $PATH | tr -s ":" "\n"'
 alias mpath='echo $MANPATH | tr -s ":" "\n"'
 alias timer='echo "Timer started. Stop with Ctrl-D." && date && time cat && date'
 
+alias tmux='tmux -f "$XDG_CONFIG_HOME/tmux/tmux.conf"'
+
 # A few options to get public IP address on command line. The dig solution
 # below using the OpenDNS resolver doesn't work when connected to
 # ExpressVPN because all DNS requests are handled by the ExpressVPN DNS

dotfiles/.config/git/config

@@ -45,7 +45,7 @@
     sub     = submodule
 
 [core]
-    excludesfile    = ~/.gitignore
+    excludesfile    = ~/.config/git/ignore
     editor          = vim
     trustctime      = false # http://www.git-tower.com/blog/make-git-rebase-safe-on-osx/
     pager           = less -F -X
@@ -80,4 +80,4 @@
     required = true
 
 [include]
-    path = ~/.gitconfig.local
+    path = ~/.config/git/config.local

dotfiles/.config/vim/vimrc

@@ -1,5 +1,7 @@
 set nocompatible
 
+let $MYVIMRC="$XDG_CONFIG_HOME/vim/vimrc"
+
 " Options {{{
     set     autoindent
     set     autoread
@@ -30,6 +32,7 @@ set nocompatible
     set     list
     set     modelines=0
     set     number
+    set     runtimepath=$XDG_CONFIG_HOME/vim,$VIMRUNTIME
     set     scrolloff=5
     set     shiftwidth=4
     set     shortmess+=I
@@ -56,7 +59,7 @@ set nocompatible
                 "   | |    |      |     |     |
                 "   v v    v      v     v     v
     set     viminfo=h,'500,<10000,s1000,/1000,:1000
-    set     viminfofile=~/.vim/viminfo
+    set     viminfofile=$XDG_CACHE_HOME/vim/viminfo
     set     virtualedit=block
     set     wildignore=*.o,*.obj,*.pyc,*.exe,*.so,*.dll
     set     wildmenu
@@ -75,7 +78,7 @@ set nocompatible
 " }}}
 
 " Plugins {{{
-    call plug#begin('~/.vim/bundle')
+    call plug#begin('$XDG_CONFIG_HOME/vim/bundle')
         Plug 'altercation/vim-colors-solarized'
         Plug 'bronson/vim-trailing-whitespace'
         Plug 'elzr/vim-json'
@@ -229,5 +232,7 @@ augroup vimrc " {{{
     autocmd FileType gitcommit setlocal textwidth=72
 augroup END " }}}
 
-if filereadable(expand("~/.vimrc.local")) | source ~/.vimrc.local | endif
+if filereadable(expand("$XDG_CONFIG_HOME/vimrc.local"))
+    source $XDG_CONFIG_HOME/vimrc.local
+endif